Portable solar oven



FIG. 1 is a perspective view of a portable solar oven in its folded position, showing my new design;

FIG. 2 is a front elevational view of the portable solar oven unfolded;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a perspective view of the portable solar oven unfolded. 

The ornamental design for a portable solar oven, substantially as shown and described. 